apiVersion: v1
kind: Pod
metadata:
  name: nginx-demo-1
  namespace: apps
  labels:
    app: nginx
spec:
  containers:
  - name: nginx-demo-1
    image: linuxmaxiaoke/nginx:v1.0.0
    resources:
      limits:
        memory: 4096Mi
        cpu: 500m
      requests:
        memory: 400Mi
        cpu: 200m

[root@maxiaoke local-k8s-yaml]# kubectl apply -f pod-demo.yaml 
Error from server (Forbidden): error when creating "pod-demo.yaml": pods "nginx-demo-1" is forbidden: maximum memory usage per Container is 2Gi, but limit is 4Gi